C. Granata
NEMA (National Electrical Manufactures Association),
United States
Keywords: energy storage, BESS, battery performance, NEMA
Summary:
This document presents the NEMA US 80057-2024 standard, which establishes a unified framework for measuring and reporting key performance metrics of Battery Energy Storage Systems (BESS) to enable direct comparison across different manufacturers, chemistries, and configurations. It references IEC 62933-2-1:2017 for test procedures and includes basic tests such as rated power, energy capacity, efficiency, power ratings, response times, and voltage/frequency validation, as well as special-function tests like duty-cycle efficiency and fluctuation reduction. The standard also provides a standardized reporting format and incorporates best practices from existing standards to promote industry alignment, benefiting manufacturers, integrators, utilities, test labs, and regulators by ensuring clear, consistent, and credible performance comparisons.